|Team|Location|Stadium|Capacity|Manager|Captain|Kit manufacturer|Shirt sponsor|
|---|---|---|---|---|---|---|---|
|Auckland City FC|Auckland|Kiwitea Street|3,500|Ramon Tribulietx|Ivan Vicelich|Nike|Trillian Trust Inc.|
|Canterbury United|Christchurch|ASB Football Park|9,000|Keith Braithwaite|Dan Terris|Samurai|Robbie's Bar and Bistro|
|Hawke's Bay United|Napier|Bluewater Stadium|5,000|Chris Greatholder|Bill Robertson|Samurai|Kinetic Electrical|
|Otago United|Dunedin|Forsyth Barr Stadium|30,500|Richard Murray|Tristan Prattley|Canterbury|Gran's Remedy|
|Team Wellington|Wellington|David Farrington Park|3,000|Matt Calcott|Karl Whalen|adidas|Exodus Health & Fitness Club|
|Waikato FC|Hamilton|Porritt Stadium|2,700|Mark Cossey|Adam Thomas|Nike|The Soccer Shop|
|Waitakere United|Waitakere City|Fred Taylor Park|2,500|Paul Marshall|Jake Butler|Lotto Sport Italia|Cuesports Foundation|
|YoungHeart Manawatu|Palmerston North|Memorial Park|8,000|Stu Jacobs|Nathan Cooksley|Nike|New Zealand Pharmaceuticals|

Question: how many different kit manufacturers are involved?
Answer: 5